Packaging Machine For Packaging Rolls Wound Around Winding Cores

Abstract

The packaging machine including an insertion station for inserting rolls in wrapping sheets, a feed path of the rolls; a conveyor to feed the rolls along the feed path. Along the feed path there is provided a folding station, to fold the wrapping sheets and wrap the rolls in the wrapping sheets. The folding station includes, on each side of the feed path, at least one punch provided with a movement of insertion and extraction with respect to the hole of the tubular winding core of the rolls to be packaged. The punch includes a shaft rotating about a rotation axis, which supports an end pin, idle and rotatable about an axis substantially parallel and eccentric with respect to the rotation axis of the rotating shaft.

1 - 9 . (canceled) 
     
     
         10 . A packaging machine for packing rolls of material wound around a tubular winding core, comprising:
 an insertion station for inserting the rolls of material wound around a tubular winding core in wrapping sheets;   a feed path of the rolls;   a conveyor for feeding the rolls along said feed path;   along the feed path, a folding station to fold the wrapping sheets and to wrap the rolls in said wrapping sheets, wherein said folding station comprises, on each side of said feed path, at least one punch provided with an insertion movement and an extraction movement with respect to a hole of the tubular winding core of the rolls to be packaged; and   
       wherein said at least one punch comprises a shaft rotating about an axis of rotation, and said shaft supports an idle end pin rotatable about an axis substantially parallel and eccentric with respect to the axis of rotation of the shaft. 
     
     
         11 . The machine as claimed in  claim 10 , wherein said shaft is combined with a disk-shaped member. 
     
     
         12 . The machine as claimed in  claim 11 , wherein said disk-shaped member is carried by a sleeve, inside which said shaft is rotatably supported. 
     
     
         13 . The machine as claimed in  claim 12 , wherein said disk-shaped member is fixedly supported on said sleeve. 
     
     
         14 . The machine as claimed in  claim 12 , wherein said disk-shaped member is supported idly rotating about the axis of rotation of the shaft. 
     
     
         15 . The machine as claimed in  claim 10 , comprising, on each side of the feed path, one or more auxiliary punches, positioned upstream of said at least one punch comprising said shaft, with respect to a direction of feed of the rolls along said feed path, said auxiliary punches being provided with an insertion movement and an extraction movement with respect to the tubular winding core of the rolls to be packaged. 
     
     
         16 . The machine as claimed in  claim 15 , wherein said auxiliary punches are non-rotating. 
     
     
         17 . The machine as claimed in  claim 15 , wherein at least two auxiliary punches are provided on each side of the feed path, integral with one another and movable in synchronism. 
     
     
         18 . The machine as claimed in  claim 15 , wherein said one or more auxiliary punches on each side of the feed path are integral with the punch which is rotating and which moves in synchronism therewith in the insertion movement and the extraction movement with respect to the tubular winding core of the rolls.